How can we get dimensional formula of modulus of elasticity?
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Young's Modulus isn't dimensionless!
It says STRAIN is dimensionless (which is true).
SO Y = Stress/Strain = [Pressure]/[Dimensionless] = [Pressure]!
Young's Modulus has the same dimensions as that of pressure, which is:
[M][L]−1[T]−2[M][L]−1[T]−2
And units of pressure, which is Pascal.
down vote
accepted
Young's Modulus isn't dimensionless!
It says STRAIN is dimensionless (which is true).
SO Y = Stress/Strain = [Pressure]/[Dimensionless] = [Pressure]!
Young's Modulus has the same dimensions as that of pressure, which is:
[M][L]−1[T]−2[M][L]−1[T]−2
And units of pressure, which is Pascal.
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